# ---- Stage 1: Dependencies ----
FROM node:20-alpine AS deps

WORKDIR /app
COPY package.json package-lock.json* ./
RUN npm ci

# ---- Stage 2: Build ----
FROM node:20-alpine AS builder

WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .

ENV NEXT_TELEMETRY_DISABLED=1
RUN npm run build

# ---- Stage 3: Production ----
FROM node:20-alpine AS production

RUN apk add --no-cache dumb-init

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1
WORKDIR /app

RUN addgroup -S appgroup && adduser -S appuser -G appgroup

COPY --from=builder /app/public ./public
COPY --from=builder --chown=appuser:appgroup /app/.next/standalone ./
COPY --from=builder --chown=appuser:appgroup /app/.next/static ./.next/static

USER appuser

EXPOSE 3000
ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

ENTRYPOINT ["dumb-init", "--"]
CMD ["node", "server.js"]